Environment-friendly biological filter for sewage treatment

The design of the water distribution mechanism and the locking mechanism solves the problem of uneven water distribution in the biological filter for sewage treatment, realizes full contact between sewage and microorganisms, and improves sewage degradation efficiency and the practicality of the device.

CN224172599UActive Publication Date: 2026-04-28SHANDONG ESSIN ENVIRONMENTAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG ESSIN ENVIRONMENTAL TECH CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing biological filters for wastewater treatment have a limited radiation area when distributing water through spray equipment, resulting in low wastewater degradation efficiency and insufficient practicality of the device.

Method used

The water distribution mechanism includes a drive shaft, crank, U-shaped frame, pipe sleeve and water distribution pipe. The drive motor drives the water distribution pipe to swing back and forth to ensure uniform spraying of sewage. The filter plate can be easily removed and cleaned through a locking mechanism to prevent clogging.

Benefits of technology

It achieves complete coverage of the wastewater distribution area, improves the contact efficiency between wastewater and microorganisms, and ensures wastewater degradation efficiency and the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sewage treatment, and discloses an environment-friendly biological filter for sewage treatment, which comprises a main body, the top of the main body is fixedly connected with a fan, the top of the fan is fixedly connected with a driving motor, the outside of the main body is fixedly connected with an air inlet filter plate, and the inside of the main body is slidably connected with a filter plate. The interior of the main body is fixedly connected with a filter bed, the bottom end of the interior of the main body is fixedly connected with a reservoir, the exterior of the reservoir is fixedly connected with a water outlet pipe, the interior of the main body is provided with a water distribution mechanism, the water distribution mechanism is used for uniformly spraying sewage, and the exterior of a filter plate is provided with a clamping mechanism. And the clamping mechanism is used for dismounting and cleaning the filter plate. According to the device, the driving motor is started to rotate the driving shaft, the U-shaped frame drives the water distribution pipe to swing back and forth through the pipe sleeve, so that water sprayed by the spray head is distributed more uniformly, the sewage degradation efficiency is improved, and the practicability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an environmentally friendly biological filter for wastewater treatment. Background Technology

[0002] A biological filter is a facility that uses the metabolic activity of microorganisms to treat water or wastewater. It is commonly used in wastewater treatment, sewage treatment, and water purification to remove organic pollutants, nitrogen, phosphorus, and other substances from water through biodegradation.

[0003] Traditional wastewater treatment using biological filters involves setting up a microbial community inside the filter bed. Wastewater is distributed into the filter bed through pipes, where it comes into contact with the microorganisms and is decomposed and transformed into harmless substances. The wastewater distribution needs to be uniform to ensure that the wastewater can have maximum contact with the microorganisms inside the filter bed.

[0004] In existing technologies, most biological filters for wastewater treatment use spray equipment for water distribution. However, the radiation area of ​​water distribution by spray equipment alone is still limited, which cannot guarantee that the water distribution area can completely cover the filter bed, thus reducing the efficiency of wastewater degradation. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an environmentally friendly biological filter for sewage treatment, aiming to improve the problem that most biological filters for sewage treatment in the prior art suffer from low sewage degradation efficiency and low practicality due to the use of spray equipment for water distribution.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an environmentally friendly biological filter for sewage treatment, comprising a main body, a blower fixedly connected to the top of the main body, a drive motor fixedly connected to the top of the blower, an air inlet filter plate fixedly connected to the outside of the main body, a filter plate slidably connected inside the main body, a filter bed fixedly connected inside the main body, a water storage tank fixedly connected to the bottom inside the main body, a water outlet pipe fixedly connected to the outside of the water storage tank, a water distribution mechanism provided inside the main body for uniformly spraying sewage, and a locking mechanism provided outside the filter plate for removing and cleaning the filter plate.

[0007] As a further description of the above technical solution:

[0008] The water distribution mechanism includes a drive shaft, the top of which is fixedly connected to the output end of the drive motor, a crank fixedly connected to the bottom of the drive shaft, a connecting block rotatably connected to the bottom of the crank, a U-shaped frame fixedly connected to the bottom of the connecting block, a pipe sleeve rotatably connected inside the U-shaped frame, a water distribution pipe fixedly connected inside the pipe sleeve, and several nozzles fixedly connected to the bottom of the water distribution pipe.

[0009] As a further description of the above technical solution:

[0010] One end of the water distribution pipe extends through the outside of the main body, and the other end of the water distribution pipe is rotatably connected to the inner wall of the main body.

[0011] As a further description of the above technical solution:

[0012] The locking mechanism includes four mounting shells, all of which are fixedly connected to the outside of the main body. The filter plate has four locking holes on its outside, and a pull handle is fixedly connected to the side of the filter plate away from the main body.

[0013] As a further description of the above technical solution:

[0014] A spring is fixedly connected inside the mounting housing. A limiting plate is fixedly connected to the side of the spring near the filter plate. A pin is fixedly connected inside the limiting plate, and the pin engages with the locking hole.

[0015] As a further description of the above technical solution:

[0016] A fixing box is fixedly connected to the top of the mounting shell, a sliding plate is slidably connected inside the fixing box, a baffle plate is fixedly connected to the bottom of the sliding plate, and the bottom of the baffle plate abuts against the top of the limiting plate.

[0017] As a further description of the above technical solution:

[0018] The limiting plate is slidably connected inside the mounting housing, and the pin passes through both ends of the mounting housing.

[0019] As a further description of the above technical solution:

[0020] A handle is fixedly connected to the side of the pin away from the limiting plate.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the filter bed is internally equipped with a microbial community. During wastewater treatment, wastewater is evenly sprayed onto the upper part of the filter bed through a water distribution pipe. Organic and inorganic substances in the wastewater come into contact with the microorganisms and are decomposed and transformed into harmless substances. The transformed wastewater falls into a storage tank and is discharged through an outlet pipe. By starting the drive motor and rotating the drive shaft, the crank drives the U-shaped frame to swing back and forth via the connecting block. The U-shaped frame, through the sleeve, drives the water distribution pipe to swing back and forth, making the water sprayed from the nozzles more evenly distributed. This achieves the effect of further increasing the wastewater distribution area through the water distribution mechanism, ensuring that the water distribution area completely covers the filter bed, guaranteeing the contact area between wastewater and microorganisms, improving the wastewater degradation efficiency, and enhancing the practicality of the device.

[0023] 2. In this utility model, the sewage contains some solid waste. During the water distribution process, the sewage will first pass through the filter plate for preliminary filtration, and the solid waste will remain on the top of the filter plate. After a period of use, when the solid waste accumulates excessively and needs to be cleaned, the handle is pulled outward to push the pin rod to drive the limiting plate to compress the spring. When the limiting plate moves, the barrier plate will automatically fall down due to gravity to block the limiting plate and prevent it from moving. After all four pin rods are pulled out, the filter plate can be slid out of the main body to clean the solid waste. After cleaning, the filter plate is slid back into the main body, and the barrier plate is pulled up by the slide plate. The spring rebound force pushes the limiting plate to drive the pin rod to re-engage and fix it with the filter plate. This achieves the effect of quickly removing the filter plate for cleaning through the locking mechanism, avoiding the filter plate blockage caused by long-term use and affecting the sewage distribution efficiency, thus improving the practicality of the device. Attached Figure Description

[0024] Figure 1 This is a perspective view of an environmentally friendly biological filter for wastewater treatment proposed in this utility model;

[0025] Figure 2 This is a cross-sectional view of the main body of an environmentally friendly biological filter for wastewater treatment proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the water distribution mechanism of an environmentally friendly biological filter for wastewater treatment proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the filter plate of an environmentally friendly biological filter for wastewater treatment proposed in this utility model.

[0028] Figure 5 This is a cross-sectional view of the installation shell of an environmentally friendly biological filter for wastewater treatment proposed in this utility model.

[0029] Legend:

[0030] 1. Main body; 2. Fan; 3. Air inlet filter plate; 4. Drive motor; 5. Filter plate; 6. Filter bed; 7. Water storage tank; 8. Water outlet pipe; 9. Drive shaft; 10. Crank; 11. Connecting block; 12. U-shaped frame; 13. Pipe sleeve; 14. Water distribution pipe; 15. Nozzle; 16. Clip hole; 17. Pull handle; 18. Mounting shell; 19. Spring; 20. Limiting plate; 21. Pin rod; 22. Fixing box; 23. Slide plate; 24. Barrier plate; 25. Handle. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 - Figure 3 This utility model provides an embodiment of an environmentally friendly biological filter for sewage treatment, comprising a main body 1, a blower 2 fixedly connected to the top of the main body 1 for exhausting air, a drive motor 4 fixedly connected to the top of the blower 2 for providing power to drive the blower 2, an air inlet filter plate 3 fixedly connected to the outside of the main body 1, a filter plate 5 slidably connected inside the main body 1 for filtering solid waste in sewage, a filter bed 6 fixedly connected inside the main body 1 for setting microorganisms, a water storage tank 7 fixedly connected to the bottom inside the main body 1 for storing purified sewage, an outlet pipe 8 fixedly connected to the outside of the water storage tank 7 for draining water, a water distribution mechanism inside the main body 1 for uniformly spraying sewage, and a locking mechanism outside the filter plate 5 for removing and cleaning the filter plate 5. The water distribution mechanism includes a drive shaft 9, which connects to a crank 10. The top of the drive shaft 9 is fixedly connected to the output end of the drive motor 4, and the bottom of the drive shaft 9 is fixedly connected to the crank 10, which serves to mount a connecting block 11. The bottom of the crank 10 is rotatably connected to the connecting block 11, which connects to a U-shaped frame 12. The bottom of the connecting block 11 is fixedly connected to the U-shaped frame 12, which connects to a sleeve 13. The inside of the U-shaped frame 12 is rotatably connected to the sleeve 13, which connects to a water distribution pipe 14. The inside of the sleeve 13 is fixedly connected to the water distribution pipe 14, which connects to nozzles 15. Several nozzles 15 are fixedly connected to the bottom of the water distribution pipe 14, which distribute water. One end of the water distribution pipe 14 passes through the outside of the main body 1, and the other end of the water distribution pipe 14 is rotatably connected to the inner wall of the main body 1.

[0033] Reference Figure 1 and Figure 4 - Figure 5 The locking mechanism includes four mounting shells 18, which serve to fix the internal structure. All four mounting shells 18 are fixedly connected to the outside of the main body 1. The filter plate 5 has four locking holes 16 on its outside, which serve to lock and fix it. A pull handle 17 is fixedly connected to the side of the filter plate 5 away from the main body 1. A spring 19 is fixedly connected inside the mounting shell 18. The spring 19 provides elastic force to push the limiting plate 20. The limiting plate 20 is fixedly connected to the side of the spring 19 near the filter plate 5. The limiting plate 20 prevents the spring 19 from falling off. A pin 21 is fixedly connected inside the limiting plate 20. The pin 21 engages with the locking hole 16. A fixing box 22 is fixedly connected to the top of the mounting shell 18. The fixing box 22 fixes the internal structure. A sliding plate 23 is slidably connected inside the fixing box 22. The sliding plate 23 connects to the barrier plate 24. The barrier plate 24 is fixedly connected to the bottom of the sliding plate 23. The barrier plate 24 prevents the limiting plate 20 from moving. The bottom of the barrier plate 24 abuts against the top of the limiting plate 20. The limiting plate 20 is slidably connected inside the mounting shell 18. The pin 21 passes through both ends of the mounting shell 18. A handle 25 is fixedly connected to the side of the pin 21 away from the limiting plate 20.

[0034] Working principle: The filter bed 6 contains a microbial community. During wastewater treatment, wastewater is evenly sprayed onto the upper part of the filter bed 6 through the water distribution pipe 14. The organic and inorganic substances in the wastewater are decomposed and transformed into harmless substances upon contact with the microorganisms. The transformed wastewater falls into the water storage tank 7 and is discharged through the water outlet pipe 8. By starting the drive motor 4, the drive shaft 9 is rotated, causing the crank 10 to drive the U-shaped frame 12 to swing back and forth through the connecting block 11. The U-shaped frame 12 drives the water distribution pipe 14 to swing back and forth through the pipe sleeve 13, making the water sprayed from the nozzle 15 more evenly distributed.

[0035] Wastewater contains some solid waste. During the water distribution process, the wastewater will first pass through the filter plate 5 for preliminary filtration. Solid waste will remain on the top of the filter plate 5. After a period of use, when too much solid waste accumulates and needs to be cleaned, the handle 25 is used to pull the pin 21 outward, which will cause the limiting plate 20 to compress the spring 19. When the limiting plate 20 moves, the barrier plate 24 will fall automatically due to gravity, blocking the limiting plate 20 and preventing it from moving. After all four pins 21 are pulled out, the filter plate 5 can be slid out of the main body 1 through the handle 17 to clean the solid waste. After cleaning, the filter plate 5 is slid back into the main body 1. The slide plate 23 is used to pull up the barrier plate 24. The spring 19 pushes the limiting plate 20, which in turn causes the pins 21 to re-engage and fix with the filter plate 5.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An environmentally friendly biological filter for wastewater treatment, comprising a main body (1), characterized in that: A fan (2) is fixedly connected to the top of the main body (1), a drive motor (4) is fixedly connected to the top of the fan (2), an air intake filter plate (3) is fixedly connected to the outside of the main body (1), a filter plate (5) is slidably connected inside the main body (1), a filter bed (6) is fixedly connected inside the main body (1), a water storage tank (7) is fixedly connected to the bottom inside the main body (1), a water outlet pipe (8) is fixedly connected to the outside of the water storage tank (7), a water distribution mechanism is provided inside the main body (1) for uniformly spraying sewage, and a locking mechanism is provided outside the filter plate (5) for removing and cleaning the filter plate (5).

2. The environmentally friendly biological filter for wastewater treatment according to claim 1, characterized in that: The water distribution mechanism includes a drive shaft (9), the top of which is fixedly connected to the output end of the drive motor (4), and a crank (10) is fixedly connected to the bottom of the drive shaft (9). A connecting block (11) is rotatably connected to the bottom of the crank (10), and a U-shaped frame (12) is fixedly connected to the bottom of the connecting block (11). A pipe sleeve (13) is rotatably connected inside the U-shaped frame (12), and a water distribution pipe (14) is fixedly connected inside the pipe sleeve (13). Several nozzles (15) are fixedly connected to the bottom of the water distribution pipe (14).

3. The environmentally friendly biological filter for wastewater treatment according to claim 2, characterized in that: One end of the water distribution pipe (14) penetrates the outside of the main body (1), and the other end of the water distribution pipe (14) is rotatably connected to the inner wall of the main body (1).

4. The environmentally friendly biological filter for wastewater treatment according to claim 1, characterized in that: The locking mechanism includes four mounting shells (18), all of which are fixedly connected to the outside of the main body (1). The filter plate (5) has four locking holes (16) on its outside. A handle (17) is fixedly connected to the side of the filter plate (5) away from the main body (1).

5. The environmentally friendly biological filter for wastewater treatment according to claim 4, characterized in that: A spring (19) is fixedly connected inside the mounting shell (18). A limiting plate (20) is fixedly connected to the side of the spring (19) near the filter plate (5). A pin (21) is fixedly connected inside the limiting plate (20). The pin (21) engages with the locking hole (16).

6. The environmentally friendly biological filter for wastewater treatment according to claim 5, characterized in that: The top of the mounting shell (18) is fixedly connected to a fixing box (22), and a sliding plate (23) is slidably connected inside the fixing box (22). A barrier plate (24) is fixedly connected to the bottom of the sliding plate (23), and the bottom of the barrier plate (24) abuts against the top of the limiting plate (20).

7. The environmentally friendly biological filter for wastewater treatment according to claim 5, characterized in that: The limiting plate (20) is slidably connected inside the mounting shell (18), and the pin (21) passes through both ends of the mounting shell (18).

8. The environmentally friendly biological filter for wastewater treatment according to claim 5, characterized in that: A handle (25) is fixedly connected to the side of the pin (21) away from the limiting plate (20).